1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)print.c 8.6 (Berkeley) 4/16/94 34 * $FreeBSD: src/bin/stty/print.c,v 1.12.2.2 2001/07/04 22:40:00 kris Exp $ 35 * $DragonFly: src/bin/stty/print.c,v 1.4 2003/09/28 14:39:15 hmp Exp $ 36 */ 37 38 #include <sys/types.h> 39 40 #include <stddef.h> 41 #include <stdio.h> 42 #include <string.h> 43 44 #include "stty.h" 45 #include "extern.h" 46 47 #include <sys/ioctl_compat.h> /* XXX NTTYDISC is too well hidden */ 48 49 static void binit (const char *); 50 static void bput (const char *); 51 static const char *ccval (struct cchar *, int); 52 53 void 54 print(struct termios *tp, struct winsize *wp, int ldisc, enum FMT fmt) 55 { 56 struct cchar *p; 57 long tmp; 58 u_char *cc; 59 int cnt, ispeed, ospeed; 60 char buf1[100], buf2[100]; 61 62 cnt = 0; 63 64 /* Line discipline. */ 65 if (ldisc != TTYDISC) { 66 switch(ldisc) { 67 case NTTYDISC: 68 cnt += printf("new tty disc; "); 69 break; 70 case SLIPDISC: 71 cnt += printf("slip disc; "); 72 break; 73 case PPPDISC: 74 cnt += printf("ppp disc; "); 75 break; 76 default: 77 cnt += printf("#%d disc; ", ldisc); 78 break; 79 } 80 } 81 82 /* Line speed. */ 83 ispeed = cfgetispeed(tp); 84 ospeed = cfgetospeed(tp); 85 if (ispeed != ospeed) 86 cnt += 87 printf("ispeed %d baud; ospeed %d baud;", ispeed, ospeed); 88 else 89 cnt += printf("speed %d baud;", ispeed); 90 if (fmt >= BSD) 91 cnt += printf(" %d rows; %d columns;", wp->ws_row, wp->ws_col); 92 if (cnt) 93 (void)printf("\n"); 94 95 #define on(f) ((tmp & (f)) != 0) 96 #define put(n, f, d) \ 97 if (fmt >= BSD || on(f) != (d)) \ 98 bput((n) + on(f)); 99 100 /* "local" flags */ 101 tmp = tp->c_lflag; 102 binit("lflags"); 103 put("-icanon", ICANON, 1); 104 put("-isig", ISIG, 1); 105 put("-iexten", IEXTEN, 1); 106 put("-echo", ECHO, 1); 107 put("-echoe", ECHOE, 0); 108 put("-echok", ECHOK, 0); 109 put("-echoke", ECHOKE, 0); 110 put("-echonl", ECHONL, 0); 111 put("-echoctl", ECHOCTL, 0); 112 put("-echoprt", ECHOPRT, 0); 113 put("-altwerase", ALTWERASE, 0); 114 put("-noflsh", NOFLSH, 0); 115 put("-tostop", TOSTOP, 0); 116 put("-flusho", FLUSHO, 0); 117 put("-pendin", PENDIN, 0); 118 put("-nokerninfo", NOKERNINFO, 0); 119 put("-extproc", EXTPROC, 0); 120 121 /* input flags */ 122 tmp = tp->c_iflag; 123 binit("iflags"); 124 put("-istrip", ISTRIP, 0); 125 put("-icrnl", ICRNL, 1); 126 put("-inlcr", INLCR, 0); 127 put("-igncr", IGNCR, 0); 128 put("-ixon", IXON, 1); 129 put("-ixoff", IXOFF, 0); 130 put("-ixany", IXANY, 1); 131 put("-imaxbel", IMAXBEL, 1); 132 put("-ignbrk", IGNBRK, 0); 133 put("-brkint", BRKINT, 1); 134 put("-inpck", INPCK, 0); 135 put("-ignpar", IGNPAR, 0); 136 put("-parmrk", PARMRK, 0); 137 138 /* output flags */ 139 tmp = tp->c_oflag; 140 binit("oflags"); 141 put("-opost", OPOST, 1); 142 put("-onlcr", ONLCR, 1); 143 put("-ocrnl", OCRNL, 0); 144 put("-oxtabs", OXTABS, 1); 145 put("-onocr", OXTABS, 0); 146 put("-onlret", OXTABS, 0); 147 148 /* control flags (hardware state) */ 149 tmp = tp->c_cflag; 150 binit("cflags"); 151 put("-cread", CREAD, 1); 152 switch(tmp&CSIZE) { 153 case CS5: 154 bput("cs5"); 155 break; 156 case CS6: 157 bput("cs6"); 158 break; 159 case CS7: 160 bput("cs7"); 161 break; 162 case CS8: 163 bput("cs8"); 164 break; 165 } 166 bput("-parenb" + on(PARENB)); 167 put("-parodd", PARODD, 0); 168 put("-hupcl", HUPCL, 1); 169 put("-clocal", CLOCAL, 0); 170 put("-cstopb", CSTOPB, 0); 171 switch(tmp & (CCTS_OFLOW | CRTS_IFLOW)) { 172 case CCTS_OFLOW: 173 bput("ctsflow"); 174 break; 175 case CRTS_IFLOW: 176 bput("rtsflow"); 177 break; 178 default: 179 put("-crtscts", CCTS_OFLOW | CRTS_IFLOW, 0); 180 break; 181 } 182 put("-dsrflow", CDSR_OFLOW, 0); 183 put("-dtrflow", CDTR_IFLOW, 0); 184 put("-mdmbuf", MDMBUF, 0); /* XXX mdmbuf == dtrflow */ 185 186 /* special control characters */ 187 cc = tp->c_cc; 188 if (fmt == POSIX) { 189 binit("cchars"); 190 for (p = cchars1; p->name; ++p) { 191 (void)snprintf(buf1, sizeof(buf1), "%s = %s;", 192 p->name, ccval(p, cc[p->sub])); 193 bput(buf1); 194 } 195 binit(NULL); 196 } else { 197 binit(NULL); 198 for (p = cchars1, cnt = 0; p->name; ++p) { 199 if (fmt != BSD && cc[p->sub] == p->def) 200 continue; 201 #define WD "%-8s" 202 (void)snprintf(buf1 + cnt * 8, sizeof(buf1) - cnt * 8, 203 WD, p->name); 204 (void)snprintf(buf2 + cnt * 8, sizeof(buf2) - cnt * 8, 205 WD, ccval(p, cc[p->sub])); 206 if (++cnt == LINELENGTH / 8) { 207 cnt = 0; 208 (void)printf("%s\n", buf1); 209 (void)printf("%s\n", buf2); 210 } 211 } 212 if (cnt) { 213 (void)printf("%s\n", buf1); 214 (void)printf("%s\n", buf2); 215 } 216 } 217 } 218 219 static int col; 220 static const char *label; 221 222 static void 223 binit(const char *lb) 224 { 225 226 if (col) { 227 (void)printf("\n"); 228 col = 0; 229 } 230 label = lb; 231 } 232 233 static void 234 bput(const char *s) 235 { 236 237 if (col == 0) { 238 col = printf("%s: %s", label, s); 239 return; 240 } 241 if ((col + strlen(s)) > LINELENGTH) { 242 (void)printf("\n\t"); 243 col = printf("%s", s) + 8; 244 return; 245 } 246 col += printf(" %s", s); 247 } 248 249 static const char * 250 ccval(struct cchar *p, int c) 251 { 252 static char buf[5]; 253 char *bp; 254 255 if (p->sub == VMIN || p->sub == VTIME) { 256 (void)snprintf(buf, sizeof(buf), "%d", c); 257 return (buf); 258 } 259 if (c == _POSIX_VDISABLE) 260 return ("<undef>"); 261 bp = buf; 262 if (c & 0200) { 263 *bp++ = 'M'; 264 *bp++ = '-'; 265 c &= 0177; 266 } 267 if (c == 0177) { 268 *bp++ = '^'; 269 *bp++ = '?'; 270 } 271 else if (c < 040) { 272 *bp++ = '^'; 273 *bp++ = c + '@'; 274 } 275 else 276 *bp++ = c; 277 *bp = '\0'; 278 return (buf); 279 } 280